Bihar Police Constable Model Paper 7

Given -
Marked price = Rs. 800, Profit = 25%, Discount = 20%
Formula used -
(cost price/marked price) = (100 - Discount)/(100 + profit)
Solution -
Let the cost price be Rs. x.
⇒ (x/800) = (80/125)
⇒ x = (800 × 80)/125
⇒ x = Rs. 512
∴ cost price of the article is Rs. 512